已知1/x-1/y=3,则分式2x-14xy-2y/x-2xy-y的值为多少?

来源:学生作业帮助网 编辑:六六作业网 时间:2024/05/03 01:56:29
已知1/x-1/y=3,则分式2x-14xy-2y/x-2xy-y的值为多少?已知1/x-1/y=3,则分式2x-14xy-2y/x-2xy-y的值为多少?已知1/x-1/y=3,则分式2x-14xy

已知1/x-1/y=3,则分式2x-14xy-2y/x-2xy-y的值为多少?
已知1/x-1/y=3,则分式2x-14xy-2y/x-2xy-y的值为多少?

已知1/x-1/y=3,则分式2x-14xy-2y/x-2xy-y的值为多少?
1/x-1/y=3 = (y-x)/(xy)=3
y-x=3xy
2x-14xy-2y/x-2xy-y = (-6xy-14xy)/(-3xy-2xy)=4